baber/WOPTO huggingface dataset:
Patent GB-749400-A (GB)
Title: Improvements relating to banding machines and the like
IPC: B65B13/18
Filed: 1953-11-26
Abstract: 749,400. Feeding webs. WALLIS, L. Nov. 25, 1954 [Nov. 26, 1953], No. 32890/53. Class 100 (1). A device to facilitate the drawing of strip from a reel 6 for a banding or like device comprises a substantially circular enclosure 2 within which is mounted a pair of feed rollers 9, 10 adapted to draw off strip from the reel, which is rotatably mounted, and to lay at least one convolution of strip against the inside of the enclosure to form a reserve available for feeding to the machine in the varying lengths required. The expanding action of the strip is used to control the feeding of the strip by the rollers. As the reserve convolutions press against the outer wall (see Fig. 3) the resistance to feeding increases until the rollers 9, 10 slip on the strip and feeding stops. When part of this reserve is drawn off through the gap 4, as shown in Fig. 6, the feeding rollers grip again. Alternatively, a switch 20 may be provided adapted to be operated by the expanding convolution or convolutions to interrupt the drive to the feed rollers. A pivoted guide 17 is provided on the delivery side of the rollers 9, 10 to prevent the strip buckling between the rollers and the point where it is supported by bearing against the outer wall of the enclosure. As shown in Fig. 5, the spindles 11A, 11 of the friction rollers 9, 10 are driven in opposite directions by intermeshing gears 22. The spindle 11 is fixed and driven by a chain or belt 13. The spindle 11A is mounted on an arm 14 pivoted at the upper end and a spring 15 urges the roller 9 against roller 10. A spring latch 21 may be engaged under a shoulder on arm 14 to lift roller 9 to facilitate insertion of the strip between the rollers. The enclosure 2 consists of a circular wall secured to a back plate 1, a straight extension 3 providing a guide for the strip where it passes out. Fences 8A may be provided on radial arms 8 to locate the reel against the back-plate and spring-loaded arms 19 bear on the reel to keep the coils compact. The reel may alternatively be mounted outside the enclosure, the feed rollers then being placed so as to lay the convolutions against the inside of the enclosure as described above.
Patent GB-446440-A (GB)
Title: Improvements in and relating to the mounting of electric insulators
IPC: H01B17/20
Filed: 1934-11-17
Abstract: 446,440. Insulators. THIRY, L., 17, Rue Vankeerberghen, Huy, Belgium. Nov. 17, 1934, No. 33160. Convention date, Dec. 2, 1933. [Class 36] An insulator 1, Fig. 1, having a cavity 2 is secured to a supporting pin 3 by a rubber or other resilient ring 5 which is under radial compression between the pin and the wall of the cavity. A resilient washer 4, which may have a central aperture and which may form an integral part of the ring 5, may be applied between the top of the pin and the closed end of the cavity. In a modified construction, Fig. 4, the cavity increases in cross-sectional area towards its closed end and the ring 5 is surrounded by a metal tube 8 which is rendered resilient by longitudinal slots 9 and which is retained in position by a spring ring 10 engaging a groove 11 in the insulator. An annular flange 14 is secured to the top of the pin to prevent axial displacement of the latter. In assembling such an insulator the tube 8, ring 5 and pin 3 are inserted into a ring 12, Fig. 5, having an internal diameter somewhat smaller than the minimum diameter of the cavity 2, and are then pushed as a whole from the ring 12 into the cavity 2. In another process for inserting the resilient ring into the insulator cavity, the ring is compressed and congealed between two coaxial tubes into a form which may readily be inserted between the pin and the cavity wall.
Patent GB-308286-A (GB)
Title: Means for regulating the supply of current from dynamos having a third brush for use in power driven vehicles
IPC: H02J7/16
Filed: 1927-12-08
Abstract: 308,286. Fornaca, G. Dec. 8, 1927. Drawings to Specification. Exciting.-A variable speed dynamo with an auxiliary brush such as is used on motor vehicles and trains for charging batteries has a main field winding between one main brush and the auxiliary brush, a second, co-operating, field winding between the auxiliary brush and the other main brush and a switch in series with the latter so that it may be rendered inoperative at will. Over-charge of the battery may thus be prevented and charging effected at low speeds.
Patent GB-779978-A (GB)
Title: Improvements in or relating to fuel-injection spark-ignition internal-combustion engines
IPC: F02M69/00
Filed: 1955-11-21
Abstract: 779,978. Fuel-injection engines. SOC. ANON. A. CITROEN. Nov. 21, 1955 [May 13, 1955], No. 33231/55. Class 7 (3). In a spark ignition engine fuel injection from a nozzle 1 located upstream of and close to the inlet port, is timed so that injection begins before the opening of the inlet valve and is completed shortly before or shortly after the opening of the inlet valve.
Patent GB-960880-A (GB)
Title: Improvements in or relating to the preparation and processing of natural and synthetic rubbers
IPC: C08L21/00
Filed: 1960-09-28
Abstract: A natural or synthetic rubber composition is prepared by a process comprising blending a casein-rubber master-batch (containing between 20% and 80% by weight of casein) into a dry natural or synthetic rubber so as to provide a blend containing from 10 to 20% by weight of casein.  The master-batch is preferably made by coprecipitating aqueous casein and latex. Specifications 803,013 and 880,739 are referred to.
Patent GB-1188468-A (GB)
Title: Improvements in or relating to High Speed Pulse Counter
IPC: H03K23/80
Filed: 1968-07-12
Abstract: 1,188,468. Tunnel-diode bi-stable circuits. COMPAGNIE GENERALE D'ELECTRICITE. 12 July, 1968 [13 July, 1967; 28 March, 1968], No. 33448/68. Heading H3T. [Also in Division G4] Three embodiments of tunnel-diode flip-flop counting circuits are described. First embodiment, Fig. 5.-In a binary counter each stage comprises a pair of tunnel diodes D1, D2 in series. The trigger point P of each stage is connected to potential V 1 + through relatively low and high resistances R3 or R3<SP>1</SP> according to whether the stage is odd or even. After the first stage has been triggered by a positive pulse jfrom a generator G the stage assumes a different condition. A second pulse returns the first stage to original condition and sends a negative jpulse through capacitor M to the second stage which changes over from its first condition to its second condition. The first and second conditions of the stages may vary according to circuit values. The terminals Z may be used for readout with markings having opposite significance for alternate stages, or they may be used for resetting to zero by pulses Y. Second embodiment, Fig. 6.-Alternate stages have the tunnel diodes oppositely poled and are connected alternately to potentials -V 2 , +V 1 . Third embodiment, Fig. 7.-All stages are alike and respond to negative trigger pulses J 1 . When a stage returns to normal its output pulse from M is inverted by a transistor T to produce a further negative trigger pulse J 2 .
Patent GB-1313594-A (GB)
Title: Regulated oscillator circuit
IPC: H02M3/338
Filed: 1970-07-09
Abstract: 1313594 Automatic voltage control TEKTRONIX Inc 9 July 1970 [28 July 1969] 33449/70 Heading G3R A stabilized D.C. voltage is provided by a DC-DC converter comprising a transformer 10 having an input winding 12 periodically connnected to a DC supply V 00  by a switching transistor 40, an output winding 14 supplying a D.C. voltage at point 30 through a voltage doubling circuit 20, 22, 24, 26, and feedback and control windings 16, 18 which respectively apply a signal to the base of transistor 40 and a signal to the input of a high gain D.C. amplifier 52 whose output determines the period of conduction of transistor 40 in accordance with a comparison of the D.C. voltage at point 30 with a reference voltage from divider 56, 58. The described embodiment forms a regulated oscillator having the following cycle of operations: - (1)With transistor 40 off, the energy stored in transformer 10 drives positive the voltage V 2  at diode 38, until diode 20 conducts to charge capacitor 24. (2) Following this charge V 2  decreases and becomes negative during conduction of diode 22 and charging of capacitor 26. (3) During the latter charging the current i o  from the winding 16 becomes positive to flow into the base of transistor 40, this current having previously been negative through the diode 42. Transistor 40 does not conduct however, as the voltage V 2  is negative and thus isolated  by the diode 38  (4) When capacitor 26 has charged the voltage V 2  moves positively until it reaches zero, when the diode 38 allows transistor 40 to conduct  and so hold V 2  at zero.  (5) Current now flows through the winding 12 until the voltage V 5  at input of amplifier 52 becomes negative to cut off the transistor 40. The instant at which this happens is determined by the value of D.C. voltage superimposed on the sinusoidal voltage V 4  from the winding 18, the voltage V 4  being substantially in phase with the voltage V 2  and the voltage V 5  lagging it by about 90 degrees. Thus variations of the voltage at point 30 vary the instant at which voltage V 5  becomes negative and hence the period of conduction of transistor 40, to  maintain the voltage at the reference value. Members 68, 70 are provided to protect against run-away should the control loop fail to turn off the transistor 40. In this event V 2  becomes increasingly negative until Zener diode 70 conducts to charge capacitor 44 in a direction to reduce the base drive to the transistor 40.  Voltage and current waveforms corresponding to the cycle of operations described above are discussed, Fig. 2 (not shown).
Patent GB-1154810-A (GB)
Title: Locking Differential Mechanism
IPC: F16F15/32
Filed: 1967-07-20
Abstract: 1,154,810. Differential gear. TOKYO SOKUHAN K.K. 20 July, 1967 [22 July, 1966], No. 33453/67. Heading F2D. A motor-vehicle limited-slip bevel-type differential gear is locked by torque-responsive clutch packs 24, 25 biased into engagement, when one or other driven wheel loses traction, by camming balls 14, 32 arranged in opposed conical recesses between the bevel side wheels 9, 28 and end flanges of sleeves 11, 29 on which the side wheels are freely mounted, the sleeves being splined fast on the output half-shafts 15, 16 and supported against inward axial movement by a centre spacer (17), Figs. 3 and 4 (not shown), arranged with axial clearance on the planet pinion cross-pin 6. In Fig. 1 (not shown), the camming balls and sleeve are omitted from one side wheel (10) which is splined direct to the half-shaft 16, the side wheel being with a partspherical face (19) on which is seated and centred an intermediate thrust washer (18) rotatably connected to the bevel wheel by a pocketed ball (20), and arranged to abut the centre spacer 7.
Patent GB-640681-A (GB)
Title: Improvements in and relating to resistance welding electrodes
IPC: B23K35/22
Filed: 1947-12-18
Abstract: 640,681. Making welding - electrodes. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 18, 1947, No. 33457. Convention date, Dec. 20, 1946. [Classes 83 (ii) and 83 (iv)] Powder metallurgy.-A resistance welding electrode is made of a mixture of copper and carbon powders in which the carbon comprises 0.25-0.75 per cent of this mixture by weight. Powdered graphite and copper are mixed in a ball-mill for 6 hours and are then pressed in a steel mould at 59,000 lbs. per square inch and heated in a hydrogen atmosphere at 950‹ C. Alternatively, the copper may be heated for 2-3 hours at 500‹ C. in an hydrogen atmosphere and then mixed with graphite in a ballmill for 10 hours and pressed in a mould at 2500 lbs. per square inch at 1000‹ C. Specification 424,816 is referred to.
Patent GB-905766-A (GB)
Title: Improvements in tubular structures
IPC: B29D23/00
Filed: 1960-09-30
Abstract: 905,766. Tubular structures. ETABLISSEMENTS BOUCHAYER & VIALLET. Sept. 30, 1960 [Oct. 15, 1959], No. 33684/60. Class 99(2) A tubular structure comprises a wall 10 and an internal helicoidal tube 11 associated therewith, the tube being expanded against the wall by the action of fluid pressure introduced through orifices 12 and into the tube. As shown, the tube is hermetically sealed at the ends thereof and is provided with at least one orifice 12 fitted with a valve 13. In modifications, (a) the convolutions of the tube are in contact and the tube is located between two walls, (b) two tubes each having the convolutions thereof in contact and arranged in contact one against the other are disposed within a single wall or between a pair of walls, (c) wedges are provided between the convolutions of the tube, (d) the tube is of flattened form prior to the introduction therein of pressure fluid and located between two walls, (f) the inner wall or both walls is or are helically corrugated. The materials used in the structure may be metal, natural or synthetic rubber or synthetic plastic. In making the structure, the walls are constituted by helically wound bands 41, 44 welded edge-to-edge at 42, 45, the tube 43 serving as a support for the weld of the outer wall 44. It is stated that the structure may be employed in the construction of girders for bridges, walls or flooring, the hulls of ships, floating docks, casings for nuclearreactors and refrigeration plant, vats, reservoirs, chambers under pressure, caissons, or as a fluid-conveying conduit. When used as a submarine conduit the latter is floated, or supported by floats, to the place of immersion and the helical tube 46 is connected by a flexible pipe 47 to a pump 48 carried in a boat 49. Admission of a dense liquid to the tube causes the conduit to sink to the bottom 51..
Patent GB-451077-A (GB)
Title: Improvements in hair curling devices
IPC: A45D2/16
Filed: 1935-12-05
Abstract: 451,077. Hair - curling appliances. LECHLER, E. F., 569, West 181st Street, New York, U.S.A. Dec. 5, 1935, No. 33767. Convention date, Dec. 7, 1934. [Class 131] A hair - curler comprises a pair of substantially parallel prongs 11, 12, and a spring member parallel to the prongs between which spring member and the prongs the ends of the strand of hair are caught. The prongs are in the form of semi-cylinders with their concavities facing. A bar 15 pivoted at 16 to the prong 11 has an arm 17 projecting through an opening 18 in the other prong and is held against the side of the prong 11 by a spring 19. The end of the hair tress is slipped between the prong 11 and the bar 15 and the curler is turned to wind the hair thereon. One limb of a hair grip or similar device is passed over the hair inside the curler and when the hair is dry, the curler is withdrawn after depressing the arm 17 to release the bar 15. The curl is then retained by the hair grip. In a modification, Fig. 3, the prongs are internally grooved to receive a spring 26 having a bentout actuating portion 27 projecting through a slot 25 in one of the prongs. If the spring pressure be not too great, the releasing devices 17 and 27 may be dispensed with. An electric heater may be inserted in the curler.
Patent GB-907892-A (GB)
Title: A new or improved tap for controlling the flow of liquids
Inventor: DOWNIE GEORGE
IPC: E03C1/08
Filed: 1959-10-06
Abstract: 907,892. Valves. GASKELL & CHAMBERS Ltd. July 5, 1960 [Oct. 6, 1959], No.33796/59. Class 135. A tap for controlling the flow of liquids comprises a nozzle part 10 having at least one orifice 13 communicating with an internal bore, and a cap 11 mounted on the nozzle, the outer end of the cap having an outlet 15 and being shaped so as to be engageable with the adjacent end of the nozzle, the cap being axially movable relative to the nozzle between a closed position in which the outer end of the cap sealingly engages the adjacent end of the nozzle so communication between the orifice and the outlet is interrupted and an open position in which the outer end of the cap is disengaged from the adjacent end of the nozzle and communication between the orifice and the outlet is established. The cap is moved to the open position as shown in Fig. 2 against the action of a spring 18 by a cam-lever 20. Upon release of the lever, the cap rises so that its interior surface engages with the end 16 of the nozzle; the end 16 may be of resilient material such as rubber or of metal and have an 0-ring for engagement with the cap.
Patent GB-1003944-A (GB)
Title: Improvements in or relating to piping or conduit
Inventor: BENJAMIN PAUL
IPC: F16L47/10
Filed: 1963-08-27
Abstract: 1,003,944. Non-metallic pipes; pipe Joints. HEPWORTH IRON CO. Ltd. Aug. 19, 1964 [Aug. 27, 1963], No. 33819/63. Headings F2G and F2P. A pipe formed from a material which is flexible but has limited resilience, such as high or low density polyethylene, is provided with rigid tubular inserts 3, 11, e.g. of cast aluminium or aluminium alloy, or polyvinyl chloride or acrylonitrile butadiene styrene copolymer, the insert 3 having an internal groove 5, for housing a resilient sealing ring 6. The ends of the pipe may be force fitted or heated, expanded and shrunk on to the inserts, and the insert 3 may also be provided with a groove 7 for a sealing ring 8. The pipe may have at least one integral branch pipe provided with a socket-forming insert or a spigot-defining insert.
Patent GB-1490072-A (GB)
Title: Radio navigation equipment
IPC: G01S1/40
Filed: 1974-08-01
Abstract: 1490072 Aerial arrays; radio navigation STANDARD TELEPHONES & CABLES Ltd 29 July 1975 [1 Aug 1974] 33985/74 Headings H4A and H4D The Specification describes an aerial arrangement for use, actively in Doppler elevation guidance equipment as, e.g. described in Specification 1,234,541, or alternatively in an elevation angle direction finding system. The arrangement comprises an array of vertical stacks of aerials each of which stacks contains an equal number of aerials each of which aerials is arranged to have a radiation pattern which is substantially cut off in directions below a horizontal plane passing through the aerial boresight, and the aerial stacks are arranged side by side in vertically staggered relationship. The array may be planar, curved or a solid 3-dimensional matrix. The aerials may comprise horns, simple dipoles with a reflector or, preferably, vertical waveguides of length 10 to 20 wavelengths suitably phased to produce the desired elevational radiation pattern. In Fig. 1, the stacks each comprise three waveguide radiators and are energized commutatively in pairs in a sequence; the numerals denote the aerial element pairs activated on respective successive time slots. The commutation cycle used for a navigation elevation guidance system as per the above Specification is also used in application of the aerial system to elevation angle direction finding, each energized pair of aerials of the array being connected respectively to two radio receivers moving respective intermediate frequencies of difference f, the two I.F. wavetrains being detected together to yield a wavetrain at frequency f, centre of spectrum being at f(1+ksm#) where # is the angle of the received signal and k is a constant related to the apparent velocity of the source due to commutation of the scan, i.e. the Doppler shift.
Patent GB-1365237-A (GB)
Title: Terminal assembly
IPC: H01R4/30
Filed: 1972-07-20
Abstract: 1365237 Terminals NITTAN CO Ltd 20 July 1972 [21 July 1971 2 June 1972] 34028/72 Heading H2E A terninal conductor 1 is connected to a lead wire 6 by means of a clamp formed by a channel member 3, which straddles the conductor 1 with upwardly turned limbs, slidably engaging the sides of the conductor, and has a threaded hole 4<1> for receiving a screw 5 which passes through a loose hole 2<1>. Distance D between the end of channel member 3 and threaded hole 4<1> is made greater than distance d between the end of terminal conductor 1 and loose hole 2. Such an arrangement facilitates removal of the lead wire 6.
Patent GB-1510987-A (GB)
Title: Hinge assembly
IPC: A63B67/04
Filed: 1975-08-15
Abstract: 1510987 Table tennis K M ROCK 15 Aug 1975 [16 Aug 1974] 34074/75 Heading A6H [Also in Divisions A4 and E2] In a hinge mechanism (Divisions E1-2) for connecting a panel assembly 11 of a foldable table - tennis table to a support frame 12 to enable the panel assembly 11 to be capable of pivotal movement between a stowed upright attitude (position 14, Fig. 1) to an operative position (position 13, Fig. 1), the hinge mechanism includes a linkage assembly 18 having an upper (20) and lower (19) pivot assembly and control means in the form of a bearing assembly 22 associated with the linkage assembly 18 arranged to move slidably in a slot 26 in the support frame 12. A stay member 27 is provided between the bearing assembly 22 and the panel assembly 11. As shown in Fig. 4 the table - tennis table may be used by a single player for practising strokes utlising the ball rebounding from the folded panel to provide facilities for the single player. Also described in the specification is a foldable table for the playing of table squash (Fig. 5 not shown).
Patent GB-417289-A (GB)
Title: Finger dial for impulse-transmitters
IPC: H04M1/23
Filed: 1933-12-04
Abstract: 417,289. Impulse transmitters. RICHTER, M. B., 7, Amaliegade, Copenhagen. Dec. 4, 1933, No. 34078. [Class 40 (iv).] In an impulse transmitter in which the number plate g is held against the rear side of the finger disc c by resilient means such as a conical spring h, the number plate g and a flange i on the finger disc constitute a dusttight casing for preventing dust from penetrating from above or laterally into the impulsegenerating mechanism a.
Patent GB-1352443-A (GB)
Title: Method for controlling the inter-electrode clearance of an ele ctrolytic cell for electrolyzing alkali chloride by the mercuryproces
IPC: C25B15/04
Filed: 1971-07-21
Abstract: 1352443 Control of electrode clearance SHOWA DENKO K K 21 July 1971 [ 25 July 1970] 34099/71 Heading C7B A method for controlling the clearance between the anodes and the mercury cathode in an alkali metal chloride cell comprises arranging in parallel a plurality of bus-bars having anodes connected thereto, lifting the anodes when the current passing through the bus-bars exceeds a certain value and lowering the anodes when the cell voltage is higher than a certain value. The current and voltage comparison may be made using an electronic computer.
Patent GB-944332-A (GB)
Title: Supporting stands for baby carriers
Inventor: LAUGHLIN CLAYTON A
IPC: A47D13/02
Filed: 1960-10-05
Abstract: 944,332. Adjustable nursery chairs. INFANSEAT CO. Oct. 5, 1960, No. 34178/60. Heading A4J. In a child's reclining chair, a rear supporting stand is detachably engaged with the back to enable the inclination of the chair to be varied. As shown, a pair of pivotally. intercompacted U-shaped steel frames A are sprung into pivotal engagement with apertures in ribs on the back of a one piece rigid moulded plastic shell B. The central portions of the bases of the frames are staggered to prevent split rubber compacting blocks from moving towards one another. In another form, the top bar of a closed upper steel frame enters into snap engagement with notches formed in ribs on a semi-rigid plastic shell.